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@article{AMI_2015_45_a9, author = {J\'ozsef S\'andor}, title = {A note on log-convexity of power means}, journal = {Annales mathematicae et informaticae}, pages = {107--110}, publisher = {mathdoc}, volume = {45}, year = {2015}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AMI_2015_45_a9/} }
József Sándor. A note on log-convexity of power means. Annales mathematicae et informaticae, Tome 45 (2015), pp. 107-110. http://geodesic.mathdoc.fr/item/AMI_2015_45_a9/